Wrench



Sept. I, 1925. 1,551,848

D. RODGERS WRENCH Filed Aug. 30 1922 gwrsflm.

Arramvzz:

Patented Sept. 1, 1925.

UNITED. STATES DOMINICK RODGERS, OFPITTSBURGH, PENNSYLVANIA.

WRENCH.

Application filed August 30, 1922. Serial No. 585,203.

To all whom it may concern:

Be it known that I, DOMINICK Ronenns, a citizen of the United States ofAmerica, residing at Pittsburgh, in the countyof Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inrenches, of which the following is a specification. r

. The present invention relates to wrenches of the type which areprovided with a sl1dably adjustable jaw, so that adjustments may be madeinstantly in order to qulckly fit any particular sized nut on which thewrench may be. operating, Several specific parts of my inventionarene-W, and the advantages of same will be further brought out in thespecification as the description proceeds In the accompanying drawingformlng, part'of the present specification, I have illus trated thenature of my invention, in the best mode I have so far devised.

Figure 1 is a side view of my inventlon;

Fig. 2 is a cross-section taken on line 2 2 of Figure 1, and lookingtoward the right as seen in Fig. 1;

Fig. 3 is a cross-section on line 3-3 of Fi 1, looking toward the left;

Fig. 4 is a cross-section on line 44.- of Fi 1.

Fig. 5 is a perspective of a small spring used with my invention, and

Fig. 6 is a longitudinal section of a wrench commonly used.

In the drawings Fig. 1, gives a good view of the wrench forming thepresent invention, in which 1 indicates a guide bar or stem, providedwith a fixed jaw 2 on the one end thereof, and having also a pair ofoppositely disposed longitudinal grooves 3 and 4 formed therein. Thegrooves 3 and 4 preferably extend from a point 5 to the outer end 6 ofthe guide-bar 1, for a purpose which will be described.

Slidably mounted on the guide-bar 1 is the slidable jaw 7, the shape ofwhich is illustrated in Figures 1 and 3 of the drawings. The lowerportions of the fixed and slidable jaws are cut away at 8 and 9respectively to form finger-grips, for the purpose of advancing theslidable jaw into intimate contact with an article such as the nut 10,before adjusting the locking traveler or wedge 11 into locked position.

The locking traveler 11 is of the form shown in Figures 1 and 2 of thedrawings, having a pair of oppositely disposed lips understood. Athumb-hold 17 is also pro vided in the locking traveler 11 as shown foradvancing the same into position against the sliding jaw 7. I v

In order to mount the traveler 11 on the guide-bar 1, and hold itsecurely on the said bar 1, I have provided two convenient means ofaccomplishing the purpose desired. One means comprises the pair of smallparts or blocks of metal which fit into the grooves 3 and 4, which aredesignated 18, 18, and said blocks or fillers are secured in position bymeans of two small countersunk screws 19, 19 as illustrated clearly inFigures 1 and 4 of the drawings. The second means consists of a pairsmall springs 20, shown in Figure 5. It is evident that both means maybe used on the same wrench, in which case the springs 20 merel functionas a convenient resilient bu er for the locking traveler and slidablejaw. However in some cases it may be advisable in order to cheapen' thecost of manufacture, and simplify the construction to merely use thepair of springs 20, and omit the blocks 18, 18 entirely, in which casethe springs form all the abutments necessary to hold the traveler 11 andjaw 7 on the guide-bar 1.

In many wrenches of the general type under consideration one side or theother of the bar 28 is formed into teeth, say on the face 21, or 22, thefunction of the wedge 25 used being in such cases to merely secure theteeth of the slidable jaw 23 as illustrated in Figure 6 into the teeth24, the latter of course taking all the load strain of the slidable jaw23. I

In my invention I have gained an advantage by eliminating the cost ofmanufacturing teeth, with quicker slidable operation of the jaw 7 and.traveler 11, as there are no teeth on the bar 1 nor the slidable jaw 7to get engaged with each other at points other than the desired point ofengagement. In my type of wrench it is seen that when the slidable jaw 7is brought up against the nut 10, and the follower or lockingtraveler-11 adjusted in proper position so that the beveled surface 1%engages the socket 15, and the guide-bar is rotated in a clock-wisedirection or downward as seen in Fig. 1, about the center of the nut asa center of rotation, that the slida-ble jaw socket I5 impinges againstthe inclined surface of the wedge 11 at point 26; and also the saidslidable jaw impinges at point 27 on the-upper edge or back of theguide-bar 1. As no movement longitudinally of the jaw 7 can take placedue to the wedgin'g action of the wed ed traveler 11 it is evident thatthe wrench has securely gripped the nut 10. From which it is at onceseen that I have provided a: wrench which is just as serviceable from amechanical standpoint as the toothed guide-bar type, and with the addedadvantages of being more quickly adjusted-in working position, and withcost of manufacture lessened. Moreover the details ofcons-truction suchas the two types of means suggested and shown for the holding of thetraveler11 on the guide loar 1 are a further advantage.

1. In a. Wrench, aguide-bar having a fixed jaw, and a pair of opposedlongitudinal grooves formed in the sides of the guidebar, a slida-blejaw mounted on and enclosing the guide-bar, a beveled socket in theslidable jaw, a wedge-shaped traveler adapted to contactingly engage thebeveled socket of the slidable jaw and the guide-bar, to provide loy awedging action a locking means for limiting the travel of the slidablejaw in a direction which would release the grip of said jaws of thewrench on an object being held therebetween, a pair of inwardlyturnedlips formed on the traveler in e11- gage'inent with the guide-bargrooves, and resilient means for securing said traveler and slidabl'eawon the guide-bar.

2. In a wrench; a guide-bar having a pair of longitudinal side-groovesand a fixed jaw, a slidable jaw having a w'ved e-shaped socket thereinand mounted on the guidebar, a, complementary wedge-shaped travelerhaving a pair of inwardly-turned lips engaging the guide-bar grooves;means forming a resilient stop for the traveler located in theuide-grooves and independent means for securing the traveler andresilient stopping means on the guide-bar.

In testimony whereof I afiix my signature.

DOMINIGK RODGERS.

